I really wish the Kindle team had more imagination. It's a tablet designed for reading enthusiasts-- what about making one for writing enthusiasts?

Imagine a very affordable, portable laptop with week-long battery life, completely free of distractions like youtube.

It writes. It reads. It sends emails. That's it. Maybe as a stretch, they could quietly make it attractive to the tech community with a Unix-compatible shell and SSH ability. Call it the Kindle TypeLighter.

You're welcome, Amazon. I'll accept my royalty payments in personal check.

EDIT: Before anyone says anything about refresh rates, there's plenty of electronic ink technologies that are more than capable of supporting the rates needed to rapidly add characters to the screen. This thing, for example: http://www.dasung.com.cn/